My first commit of codes

vendor/mtdowling/cron-expression/src/Cron/MinutesField.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace Cron;
+
+/**
+ * Minutes field.  Allows: * , / -
+ */
+class MinutesField extends AbstractField
+{
+    public function isSatisfiedBy(\DateTime $date, $value)
+    {
+        return $this->isSatisfied($date->format('i'), $value);
+    }
+
+    public function increment(\DateTime $date, $invert = false)
+    {
+        if ($invert) {
+            $date->modify('-1 minute');
+        } else {
+            $date->modify('+1 minute');
+        }
+
+        return $this;
+    }
+
+    public function validate($value)
+    {
+        return (bool) preg_match('/^[\*,\/\-0-9]+$/', $value);
+    }
+}